NCT06799377 · Vanderbilt University Medical Center
Complications Related To Activity After Pediatric Both Bone Fractures: Exploring the Effects of Activity on Fracture Displacement
(CRABB-Y)
What this study is about
The goal of this randomly assigned clinical study is to understand the effect of activity on the re-displacement of pediatric forearm fractures in patients ages 8-18 years old excluding those with known metabolic bone disease or obvious refracture.
View original scientific description
The goal of this randomized clinical study is to understand the effect of activity on the re-displacement of pediatric forearm fractures in patients ages 8-18 years old excluding those with known metabolic bone disease or obvious refracture. The main questions the study aims to answer are: Does increased activity lead to increased re-displacement rates during the treatment of pediatric forearm fractures? Are there complications associated with increased levels of activity during the treatment of pediatric forearm fractures (skin irritation, need for re-casting, operation)? Do activity restrictions provided for pediatric forearm fractures influence patient activity levels? Participants will be randomized into activity-restricted vs activity-limited (no contact sports). Some patients will be provided an ActiGraph Activity tracker to monitor patient activity. Every patient will complete a validated activity survey (PAQ) to assess activity at each follow-up appointment. Activity data and any complications will be recorded from time of initial presentation to cast removal.
Interventions
BEHAVIORAL
Restricted Activity Reccomendations
Patients in this respective group will be given restricted activity recommendations over the casting period. They will be told "Your child has a forearm/wrist fracture. It is unknown if remaining active while in a cast affects the risk of complications after this type of fracture. Your child has been randomized to the "restricted activity" group. We ask that you limit sprinting, jumping, and organized sports during the time of cast immobilization. As a rule of thumb, we recommend "feet on the floor" activities while playing and avoiding playgrounds and gym class if possible. While it is not realistic to restrict a young child entirely, do your best to avoid strenuous or intense exercise until cleared by your physician or nurse practitioner"
BEHAVIORAL
Full Activity/Limited Activity Reccomendations
Patients in this respective group will be allowed to engage in most activities. They will be read "Your child has a forearm/wrist fracture. It is unknown if remaining active while in a cast affects the risk of complications after this type of fracture. Your child has been randomized to the "activity as tolerated" group. Your child may participate in all desired activities except contact sports. Your child does not need to increase his/her activity level but should participate in activities as they feel comfortable doing so. Sprinting, jumping, and organized sports are acceptable as long as your child is not experiencing pain. Your child may use playgrounds and participate in gym class as desired. Do your best to avoid restricting your child from activities unless they are experiencing pain or you have concerns about their safety."
Primary outcome measures
Re-Displacement
Time frame: From Cast Placement to Cast Removal, aproximately 6-8 weeks.
Re-displacement will be defined as a change in angulation of greater than 10 degrees.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Isolated Distal Radius Metaphyseal Fx (with or without ulna styloid)
- Distal Third (\<4 cm from physis) Radius and Ulna fracture (i.e. without obvious physeal involvement)
- Insolated Radial Shaft Fracture (diaphyseal)
- Radial and Ulna Shaft Fracture (diaphyseal)
Exclusion criteria
- Initial presentation \>7 days from the time of injury
- Pathologic fracture
- Any patient with metabolic bone disease (ex. Osteoporosis, skeletal dysplasias)
- Any patient with known bone fragility condition (ex. Osteogenesis imperfecta)
- If operative treatment is required at initial presentation
Where
- Nashville, Tennessee
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Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 10, 2025 · Source of record for eligibility and locations